DE10250663A1 - Bearing of a telescopic connection - Google Patents

Abstract

Bearing (1, 30) for longitudinally movable mounting of an inner profile (2) and an outer profile (3) on one another, the inner profile (2) and the outer profile (3) along a longitudinal axis (1a, 30a) of the bearing (1, 30) are movable relative to one another and the bearing (1, 30) transmits torques between the inner profile (2) and the outer profile (3), and in the bearing (1, 30) a bearing play directed transversely to the longitudinal axis (1a, 30a) is elastic is balanced, whereby the inner profile (2) and the outer profile (3) by means of the bearing (1, 30) are preloaded against one another by the bearing play without play, and in the process those which move transversely to the longitudinal axis (1a, 30a) against one another and move transversely to the longitudinal axis (1a , 30a) on resilient elements (8) supporting profiles (2, 3) at the narrowest point between the outer profile (3) and the inner profile (2) are freely movable with respect to one another by at least one operating clearance, and wherein the inner profile (2) and the outer profile (3) after overcoming d Support operating play against one another on a fuse (9) against overload.

Description

• – einer innen in dem Außenprofil sowie zwischen dem Außenprofil und Kugeln angeordneten sowie zu dem Außenprofil festen Außenhülse aus Blech,
• – zumindest einer Kugelführung mit Kugelumläufen,
• – federelastischen Elementen zum Ausgleich von Lagerspielen und mit
• – einer zwischen dem Außenprofil und dem Innenprofil angeordneten Sicherung gegen Überlast, und dabei jeder der Kugelumläufe aus
• – einer Reihe der Kugeln,
• – einer Längsführung mit einer belasteten Teilmenge der Kugeln der Reihe,
• – einer Rückführung mit einer ersten unbelasteten Teilmenge Kugeln der Reihe sowie
• – zwei die Längsführung mit der Rückführung verbindende Umleitungen, die Umleitungen mit jeweils einer zweiten unbelastete Teilmenge Kugeln der Reihe,

wobei in dem Lager das quer zu der Längsachse gerichtete Lagerspiel elastisch ausgeglichen ist und dabei jede der belasteten Teilmengen mittels jeweils wenigstens eines mindestens um die Hälfte des Lagerspieles elastisch eingefederten der Elemente belastet ist, wodurch das Innenprofil und das Außenprofil mittels des Lagers von dem Lagerspiel spielfrei gegeneinander vorgespannt sind und dabei die quer zur Längsachse gegeneinander bewegten und sich quer zur Längsachse an den federelastischen Elementen abstützende Profile an der engsten Stelle zwischen dem Außenprofil und dem Innenprofil mindestens um ein Betriebsspiel zueinander frei beweglich sind und wobei das Innenprofil und das Außenprofil sich nach Überwindung des Betriebsspieles an der Sicherung gegen Überlast gegeneinander abstützen.The invention relates to a bearing for the longitudinally movable mounting of an inner profile and an outer profile to one another, the inner profile and the outer profile being movable relative to one another along a longitudinal axis of the bearing and the bearing transmitting torques between the inner profile and the outer profile, the bearing with

• An inner sleeve made of sheet metal arranged inside the outer profile and between the outer profile and balls and fixed to the outer profile,
• - at least one ball guide with ball revolutions,
• - Elastic elements to compensate for bearing play and with
• - A protection against overload arranged between the outer profile and the inner profile, and each of the ball revolutions
• - a row of balls,
• - a longitudinal guide with a loaded subset of the balls in the row,
• - A return with a first unloaded subset of balls in the row and
• - two diversions connecting the longitudinal guide with the return, the diversions each with a second unloaded subset of balls in the row,

wherein the bearing play directed transversely to the longitudinal axis is elastically balanced and each of the loaded partial quantities is loaded by means of at least one of the elements elastically spring-loaded at least by half of the bearing play, whereby the inner profile and the outer profile by means of the bearing are free from the bearing play are prestressed against each other and the profiles that are mutually moving transversely to the longitudinal axis and are supported transversely to the longitudinal axis on the resilient elements at the narrowest point between the outer profile and the inner profile are freely movable relative to one another by at least one operating clearance, and the inner profile and the outer profile move after being overcome of the operating play on the fuse against overload against each other.

background the invention

The camp is preferred for storage of two mutually movable in a telescopic connection as well as at least pivotable together, but preferred used together rotatable shafts of a steering shaft. The storage sits between the ends of the nested Waves of telescopic length within a given stroke variable Steering shaft. Such steering shafts are for example with one in his Position adjustable steering wheel connected. One of the waves is there firmly assigned to the steering wheel. Storage is elsewhere still in a telescopic connection for the compensation of the relative movements between the steering gear assigned to the steered axle of the vehicle and the steering wheel fixed to the vehicle in the steering shaft.

One of the waves is involved an inner profile so in an outer profile on the other shaft, that torques can be transmitted within the entire stroke between the two shafts are. Each of the shafts faces at least the telescopic connection an outer profile or an inner profile with a cross section, which has a plug connection between the outer profile and the inner profile. The profiles therefore preferably have deviations from the circular shape Cross sections on.

• – Längsbewegliche Lagerung der Wellen relativ zueinander,
• – Absicherung der quer zur Längsrichtung gerichteten Lagerung und Absicherung des unendlichen Hubes zwischen den Profilen,
• – Verdrehfestes Abstützen der Wellen relativ gegeneinander,
• – Spielfreie Lagerung der Profile aneinander,
• – Sicherung der Lagerung gegen Überlast,
• – Anpassen an verschiedene nicht miteinander korrespondierende Querschnitte der Profile im Verschiebesitz.

The bearing fulfills the following requirements in the telescopic connection:

• Longitudinally movable mounting of the shafts relative to one another,
• - Securing of the bearing directed transversely to the longitudinal direction and securing the infinite stroke between the profiles,
• - Non-rotatable support of the shafts relative to each other,
• - play-free storage of the profiles together,
• - securing the bearing against overload,
• - Adapt to different cross-sections of the profiles in the sliding seat that do not correspond to each other.

The waves are by means of the bearing, along a longitudinal axis the outer profile, relative to each other longitudinally movably mounted. The inner profile moves within the outer profile along the longitudinal axis relative to the outer profile. The quality of the bearing is assessed based on the displacement force. The Displacement is a measurable parameter of resistance describes with which the interlocking shafts in the bearing along the longitudinal axis are mutually displaceable. With the help of the displacement force Statements about smooth operation when adjusting the position of the steering wheel and thus for ease of use met. The displacement force also serves to evaluate the Length compensation function between the two one along the other moving profiles, even during the transfer of torques due to steering movements, for example.

The displacement force depends on the preload, with of the shafts, which are supported against each other without play, through the bearing to the longitudinal axis are biased against each other. With increasing preload increases The pushing force usually increases and is increasingly affected by the loads dependent on the camp. Affect the design of the raceways and the guidance of the rolling elements in the bearing the displacement force directly together with the preload in the bearing.

The displacement force is further from the amount of Steering torque dependent, that during of the telescopic shifts in the bearing. It is with a view of the height the displacement force between displacement forces at operating torques and displacement forces at above maximum highest Operating torque to distinguish other moments. Under operating moments In this case, the moments are to be understood, which are usually normal circumstances occur when adjusting the steering wheel or when steering the vehicle. About the Moments exceeding the maximum operating torque act on the steering shaft for example when steering in difficult terrain or when steering against a curb. The shifting force increases with increasing steering torque on a steering shaft.

For the displacement force are set up limit values. The influence the preload on the displacement force is particularly low Steering torques on the steering shaft are high while at high steering torques the influence of the steering torque predominates. For the Displacement at operating torques are relatively low limits established. These values are due to the requirements for lightness specified with which the steering wheel is adjustable. At higher steering torques the length compensation secure in the telescopic connection in the warehouse.

The camp is based on the principle Linear bearing built with an infinite stroke and is stationary one assigned to the waves. There are rolling elements in Form of balls used, the resistance when moving keep the waves in the telescopic connection as low as possible. The bearing is at least made of an outer sleeve, a ball guide and formed from balls. The outer sleeve is in the outer profile pressed or in another suitable way in the outer profile attached.

The ball guide is provided with ball revolutions. A bearing of the generic type sees a longitudinal guide, one for each ball circulation Repatriation and two redirects. In each of the ball revolutions. is a row at a time guided by bullets whose Number usually depends on the requirements for the load capacity of the camp is determined. The longitudinal guide closes in each of the longitudinal directions of the Camp detour. The diversion is with an arched path provided that the path of the longitudinal guide and the path of repatriation with each other combines.

In the longitudinal guide there is one under load Subset of the series of balls held. With a longitudinal movement of one another stored profiles to each other pass through the balls of a row in each of the rounds one after the other and one after the other, the longitudinal guide is forced, because the balls clamped between the profiles in a rolling motion are offset and those in the diversions and in the return Push balls in front of you.

The waves are supported on the outer profile and on the inside profile the bearing against each other in all directions transverse to the longitudinal axis. The one there Reaction forces to be absorbed by the bearing are compared with the reaction forces in the camp when transferring of torques relatively low. In the camp is the game compensation together with the compensation of misalignments and tilting the longitudinal axes the interlocking profiles.

The subset under load that supports balls the waves transverse to the longitudinal axis to each other as well as to each other during steering movements around the axis of rotation from. Each of the opposite Sides of the outer profile and thus each of the opposite side of the inner profile at least one of the ball revolutions is assigned to the prior art, so that the inner profile and the outer profile in every direction transverse to the longitudinal axis storage over the respective ones in the longitudinal guide Support balls against each other. The inner profile is centered in the outer profile by means of the bearing.

The return and the diversions in the ball guide to lead the unloaded subsets of the series of balls. After going through the longitudinal guide roll the respective balls in the redirection in the direction of movement. The redirection changes the direction of movement of the row of balls, so that the Bullets in the return in move the opposite direction to the loaded balls in the longitudinal guide.

Those that were forcibly moved in the longitudinal guide Push balls Balls from the diversion continue into the return. The balls move in the return is free and without load between the outer sleeve and the surface on the inner profile. The necessary space for the balls is a movement game between the outer sleeve and the balls. The game is a distance to the outside, between those intended to rest on the surface of the inner profile Balls and the outer sleeve.

The direction of movement of the further unloaded balls is after leaving the return before entering again in the longitudinal guide in one redirected further. After entering the longitudinal guide are loaded the balls again.

The waves are over the bearing on the outer profile supported against rotation against an axis of rotation, so that torques between the shafts around the axis of rotation, for example when steering the vehicle, transferable are. The axis of rotation corresponds to a longitudinal axis of the outer profile.

The quality of the bearing is assessed based on the torsional rigidity. The torsional stiffness is a parameter that describes the degree of elasticity when twisting or the strength against torsion of the steering shaft and is therefore different from that by Steering shaft to be transmitted torque and the angle of rotation by which the steering shaft as a whole twists elastically. The elastic deflections of the bearing or bearings which are kept free of play according to the invention are the determining variables in the steering shaft, since the surrounding construction of the bearing, in particular the profiles of the shafts, are relatively stiff per se. The stiffness of the bearing and therefore the degree to which the bearing preloads the shafts against each other without steering torque has an influence on the angle of rotation. The steering shaft system must be kept so stiff that the displacements, elastic deformations and the twisting of the profiles of the steering shaft arising on the longitudinally movable bearing of the shafts have no negative effects on the function of the steering and the driving comfort.

The camp stores the waves in the Sliding seat against each other and against each other. Lack of driving comfort from noises not play-free interlocking waves and from the subjective Feeling a “spongy Steering "and malfunctions are avoided. The interlocking profiles of the steering are for this purpose by means of the bearing in all directions transverse to the longitudinal axis biased against each other without games. The degree to which the bearing biased without play depends on the sum of the tolerances of the parts installed together in the Sliding seat and from the preload with which the bearing at low Steering torques must continue to function without play.

The storage is by means of the warehouse against deformation and inadmissible Deflection in case of overload from over the Torque on the steering shaft transverse to the operating torque longitudinal axis and to protect the axis of rotation. For a Stocks of the generic type are usually very scarce dimensioned space available. The installation space is inside and outside given by the dimensions of the profiles, between which the Camp sits. The dimensions of the profiles are constructive and economic reasons kept low. The load capacity of the bearing are therefore in themselves due to its small size Set limits. Furthermore, the elements of the bearing are free of play Storage is not unlimited due to the small size of the warehouse resilient.

The inner profile sitting in the outer profile has usually viewed in cross-section, the shape of a polygon, preferably the shape of a polygon with an even number from side to side. From the side surfaces are two facing away from each other. The outer profile then preferably has a cross section of a polygon corresponding to the inner profile formed hollow profile, preferably with an even number of side surfaces facing inwards on.

Such a camp is in DE 100 62 680 A1 described. The camp after DE 100 62 A1 is provided with an elastic intermediate layer made of sheet metal, in which the longitudinal guide and the return are designed in the form of grooves aligned parallel to the longitudinal axis of the bearing and delimited by the sheet metal. The intermediate layer made of sheet metal is assigned to the outer profile, ie the intermediate layer is viewed from the axis of rotation of the bearing between the balls supported on the surface of the inner profile and the outer profile and is therefore referred to below as the outer sleeve.

The loaded subset of the balls the row supports itself inward on the surface of the inner profile and to the outside in the groove of the longitudinal guide. The sheet defining the groove of the outer sleeve is with a gap of that External profile removed and goes back into the wall, over which the longitudinal guide supports the outer profile.

The wall of the outer sleeve is to a groove for the return shaped whose depth corresponds to the diameter of the ball plus the play equivalent. The range of motion is so great that the balls are under stress and taking into account of all tolerances in the return between the outer sleeve and the inner sleeve or not between the outer sleeve and the inner profile are trapped. The return groove preferably runs parallel to the longitudinal guide.

The loaded balls are supported in the bearing inside on the surface of the inner profile and each outward in one of the grooves of the longitudinal guide the outer sleeve. The sheet of the outer sleeve delimiting the groove is supported on the sheet of the return the outer profile from. The outer sleeve is on the side facing away from the loaded balls and the outer profile side facing the outer profile one gap free spaced apart and thereby tensioning the balls against the inner profile in front. The balls are biased by an amount that ensures that the camp after overcoming the greatest total tolerance is free of play. The gap dimension corresponds at least the operating game. The operating game ensures the compensation of the Tolerances in the bearing and thus the function of the bearing Operating moments, and is usually a few tenths of a millimeter to a few millimeters.

The preload on the balls in the longitudinal guide depends on the design of the trough for the return, since the sheet of the longitudinal guide is supported on the outer profile via the sheet of the return. The balls are supported on the outer profile by a lever system predetermined by the walls of the mutually adjacent grooves. The torsional stiffness of the bearing the stop on the block in the event of an overload is relatively small due to the large distances in the system and the associated elasticity. The choice of a thicker sheet for the design of a stiffer outer sleeve is limited due to the relatively complicated shape of the sleeve. The elastic deflections of the outer sleeve on the longitudinal guide under load may adversely affect the geometry of the returns, so that the balls may be jammed in the return.

Along the outer sleeve closes on both sides one diversion each in a block made of plastic separate from the outer sleeve on. The bearing is by means of the bypasses along the outer sleeve against overload protected. The bearing initially springs under load elastic one. After passing a certain load, e.g. by exceeding the operating torque is caused, the inner profile and the outer profile on the redirects on block up. The operating game between the Profiles are used up or there is a residual game between the Profiles. The longitudinally movable roller bearing the profile is replaced by a plain bearing. The slideways are formed by the plastic of the diversion.

The object of the invention is to create a camp of the generic type, even at high Torques is torsionally stiff and under normal operating conditions has low wear forces and that is easy and inexpensive can be made.

This task is solved in that the ball guide is formed in one piece with at least one ball recirculation, wherein the ball guide inside in the outer profile between the outer sleeve and the inner profile is arranged and that the fuse in each case at least one the ball guide longitudinally adjoining and for ball guidance separate and across the longitudinal axis of the bearing directed support is.

The invention is below, too with further refinements, closer described.

The camp is at least one Outer sleeve or from an outer sleeve and an inner sleeve, one separate from the outer sleeve Ball guide and formed from balls. The outer sleeve is in the outer profile pressed in and the inner sleeve is pressed onto the inner profile or the sleeve (s) is (are) otherwise attached so that each sleeve fits the respective profile across in all directions to the longitudinal axis supports the bearing securely and in the longitudinal directions the bearing is fixed to the respective profile.

The inner profile sitting in the outer profile has preferably viewed in cross section, the shape of a polygon, preferably the shape of a polygon with an even number of pages. The faces point outwards. From the side surfaces are two facing away from each other. At least the outer sleeve, optional the outer profile preferably has a cross section corresponding to the inner profile a polygonal hollow profile with preferably one even number of pages. The cross section of the outer sleeve corresponds with the cross sections of the profiles or is, for example, by means of suitable means, such as by means of an adapter to the outer profile customized. The outer sleeve points essentially the cross-section of a polygonal hollow profile, preferably with an even number of pages. At least four inwardly facing sides of the outer sleeve is at least each one of the ball revolutions assigned. Two of the four sides lie on each other, the inner profile taking between, facing each other. The longitudinal guidance and the return of a each ball circulation lie side by side between the the inner profile outside circumferential comprehensive outer sleeve and the inner profile. The profiles are on each of the four sides loaded balls of a longitudinal guide together supported. An embodiment of the invention sees two lying side by side of the ball revolutions for each of the four pages forward. Accordingly, the camp is in the design of the Invention with a ball guide provided the eight of the ball revolutions having.

Each of the ball orbits is viewed as a whole, it is a closed, uninterrupted circulating one Track with the longitudinal guide, with the return and with the diversions. The track is unobstructed by a series of balls run through. In the orbit, the balls are facing inwards of the inner profile and to the outside towards the outer profile through the material of the ball guide held.

There are preferably 18 to 25 balls provided per ball circulation, preferably each of the rotating Balls in a row cover a distance in one revolution, which is at least the sum of the diameters of all balls in the row plus the Diameter corresponds to one of the balls in the series.

Each row of balls is divided into subsets that differ in the type of load. One part of the row of balls is constantly loaded in the longitudinal guide. The loads on the non-actuated steering shaft are essentially only applied by the pretensioning of the elements to ensure freedom from play in the bearing. Steering movements and changes in the length of the steering shaft generate support forces in the bearing on the loaded subsets. In the diversions and in the return, the other subsets of the series are constantly unloaded, even in the event of an overload. When the length of the steering shaft is changed telescopically, the balls run through the circulation. The balls of a row are loaded during a round Balls in the longitudinal guide, unloaded balls in one of the diversions, unloaded balls in the return and finally loaded balls in the longitudinal guide.

The longitudinal guide is slit-like Slit breaks through the wall of the ball guide from the inside out, and is, viewed in cross section of the camp, from the side of the walls Ball guide material limited. The distance between the opposite Sidewalls of the Longitudinal guidance the widest point corresponds to the diameter of the balls plus one Flank play. The backlash provides the freely movable guidance of the Balls safe and preferably corresponds to at least 1/10 mm.

The balls are transverse in the longitudinal guide to the direction of movement of the balls in the longitudinal guide held inwards and outwards. For this purpose, the distance, viewed in cross section of the bearing, is reduced between the opposite walls starting from the greatest distance, to the inside and outside lying edges the longitudinal guide. The distance between each inside or outside of the ball guide opposite each other edges is smaller than the diameter of each of the balls in the ball orbit. The cross-section viewed from the inside to the outside Strength the wall of the ball guide is at least lower on the longitudinal guide than the diameter of the balls. The balls in the longitudinal guide stand thus, at least on the longitudinal guide inside in the direction of the inner profile and outwards in the direction of the outer sleeve via the margins out of the longitudinal guide. The inside and opposite edges and which are each outside opposite each other margins take the balls between them on a section of the ball, whose diameter is smaller than the diameter of the ball, and keep the ball in the longitudinal guide.

One of the redirects as another part of the track joins the longitudinal guide along that the slot-like longitudinal guide into the arcuate Redirection overrides. each the diversion is inward towards the inner profile through the material the ball guide at least partially closed or opened and to the outside outer profile open towards. The distance between the opposite side walls of the Redirection at the widest point corresponds to the diameter of the Bullets plus a backlash. The backlash represents the freely movable guide of the balls in the diversion is safe and corresponds to at least 1/10 mm. The balls are in the diversion outwards to the outer profile through the edges the diversion held. The edges limit the diversion to the outside on both side walls of the diversion. At least an edge on one side of the diversion overhangs the outward opened Detour. The distance between the opposite side walls the narrowest point at the level of the overhang is smaller than the ball diameter of each ball in the series in the ball orbit. Alternatively, is analogous to the design of the Longitudinal guidance, the Distance determined by the opposite edges.

The redirects are transferred to the return. The Repatriation is inwards to the inner profile either by the material of the ball guide and outwards towards the outer profile open or executed like a slit and thus open in both directions. The balls are in return after Outside to the outer profile through the edges the repatriation held. The distance between the opposite side walls of the Repatriation the widest point corresponds to the diameter of the balls plus one Flank play. The backlash provides the freely movable guidance of the Bullets in the return safely and corresponds to at least 1/10 mm. The distance between each other opposite sidewalls at the narrowest point one is smaller than the ball diameter each ball in the row in the return and is by the distance between the opposing ones edges certainly. The opposite margins take the balls between them on a section of the ball, whose diameter is smaller than the diameter of the ball, and hold the ball in the return. The margins limit the return analogously the design of the longitudinal guide both side walls after the return inside and / or outside. Alternatively, at least one edge on one side of the return protrudes over the outward opened Groove of the return.

The ball guide is as an assembly or pre-assembled several assemblies, the assembly (s) consisting of at least a ball guide with Balls is formed. The balls in a row are in ball orbit snapped in, taking the web by snapping the balls at the edges the assembly temporarily elastic to the diameter the balls are expanded.

The ball guide is a component that preferably made of plastic, alternatively also made of metal is. The material is e.g. Plastic called polyoxymethylene (Short name POM) provided. The ball guide is preferably a circumferentially closed as well as in both longitudinal directions open hollow profile, essentially rectangular in cross section, in the wall of the balls are trained. Alternatively, the ball guide is in one piece but in the longitudinal direction slotted or formed in several parts from at least two to four individual parts, wherein each of the individual parts with at least one of the ball revolutions a row of balls.

The one under load in the longitudinal guide Part of each row of balls of the ball revolutions is supported on the outside on an inward-facing inner surface section of the inner surface of the outer sleeve which extends in the longitudinal direction over the longitudinal guide. When the shafts move longitudinally in the bearing, the loaded balls roll on the inner surface section in the longitudinal direction of the bearing. The bearing capacity depends on the number of balls in the longitudinal guide and the diameter of these balls. In this case, a higher load capacity is sensibly achieved by a larger number of balls.

The load capacity of a bearing according to the invention is further increased if the outer sleeve on the inner surface section is at least provided with a groove. The groove is on the outer sleeve Outside deeply trained and runs longitudinally aligned so with the longitudinal guide that the partial quantity guided in the longitudinal guide the row of balls during a telescopic movement in the raceway rolls. In a bearing that has only one outer sleeve and no inner sleeve, support the loaded balls in a row directly on the inside surface of the inner profile.

In a warehouse that has both an outer sleeve and also an inner sleeve has to support the loaded balls move inwards on an outward-facing outer surface section on the outer surface of the inner sleeve from.

The loaded subset of a series based at the same time to the outside as already described. Alternatively, the surface sections are with grooves Mistake. The inner surface section with or without groove and the outer surface section with or without a groove facing each other. The longitudinal guide runs between the surface sections or grooves along aligned with the sections or grooves. The flat surface sections or the grooves extend in the longitudinal direction at least over the entire length of the Longitudinal guide.

Both the grooves inside and the grooves outside are with one or more contact zones (for example, for a two-point support each of the loaded balls in the groove) and alternatively additionally a osculation that is common in rolling bearing technology on. The contact pressure in the contact zone between the ball and the outer sleeve is improved.

The balls of the unloaded subsets of each of the ball revolutions move around in the repatriation a free movement between the outer sleeve and between the material the ball guide, that lies between the unloaded part and the inner profile or free movement between the outer sleeve and the inner profile. The necessary space for the balls are created in the outer sleeve. The inner surface of the Outer sleeve is lengthways and across the entire repatriation as well lengthways and across the diversions to the outside reset from the affected subset of the balls. The inner surface of the outer sleeve is in this area compared to the load-bearing inner surface section above the longitudinal guide the outer sleeve at least as far as deferred, that inside out between those that are attached to the material or to the inner profile Balls and the outer sleeve Movement remains. The movement play frees them lengthways flexible leadership the unloaded subset is safe and is preferably greater than the operating game. The distance that the inner surface of the outer sleeve over the Return, outgoing from the inner surface section from the inside to the outside, reset alternatively corresponds at least to the thickness of the material of the return between the balls and the inner profile plus the play or the movement game. This distance is the same in both cases large, that the balls in all required operating states and under consideration of all tolerances in the return between the outer sleeve and the ball guide are trapped.

The wall of the outer sleeve points e.g. one inside out deepened longitudinal groove on that along and across the return and optional also about extends the diversions. The depth of the longitudinal groove then corresponds at least the movement game. Alternatively, the outer sleeve is over the return and optionally over the Redirects to the outside with a shape of the wall to the outside. This shape stands on the outer sleeve in this case at least the repatriation and over the Detour from the contour of the at least with the outside a polygonal or square cross section provided outer sleeve. The inner surface on the formation is at least to the inner surface section from the inside to the outside the movement play postponed.

Each of the revolutions of the ball guide is assigned one of the longitudinal grooves or one of the formations on the outer sleeve on the outside via the return and the revolutions. As an alternative to this, one of the longitudinal grooves or one of the formations crosses two mutually adjacent return paths of two mutually adjacent ball revolutions of a ball guide transverse to the longitudinal direction. Two of the adjacent ball revolutions are each assigned to one of the four inwardly facing sides of the outer sleeve. The longitudinal guides of the adjacent balls circulate directly next to each other in a plane between the outer sleeve and the inner profile. As an alternative, the circumferential balls of the inner profile are adjacent to one another. One of the ball revolutions is assigned to one of two circumferentially adjacent four sides of the outer sleeve. The adjacent returns are on two levels, preferably one on the right Angle but also include an angle greater than 90 ° between them.

The resilient elements are in one piece with the outer sleeve or formed in one piece with the inner sleeve Spring plates made of sheet metal on the respective sleeve. One of the spring plates is against a subset of the series of balls in one of the longitudinal guides biased. Each of the opposite sides of the outer sleeve or inner sleeve has at least one of the spring plates, so that the inner profile and the outer profile are biased against each other without play.

The outer sleeve is on each other opposite Sides with at least one longitudinal slot provided to the longitudinal direction the bearing is rectified. Extends along the longitudinal slot along the stripes Spring plate. The spring plate is perpendicular to the longitudinal direction through to the longitudinal slot running transverse slots limited in the outer sleeve, each in the Pass over the longitudinal slot. Each of the spring plates thus runs transversely to the longitudinal axis at the beginning of the transverse slots lever-like from the outer sleeve from. The spring plate is either at least partially behind outside over the Contour of the outer sleeve or protrudes into the inside of the outer sleeve.

On the inward facing surface of the Spring plate is the inner surface section trained on which in the longitudinal guide Balls rest or on which the balls guided in the longitudinal guide roll. Between the outside a gap remains on the opposite side of the spring plate and the outer profile. The gap is at least as large that the spring plate when assembling the ball guide and the inner profile in the outer sleeve and can move freely to the outside when the bearing is under load to fit the outer sleeve. When installing the ball guide spring with the outer sleeve the opposite Spring plates resiliently outwards by a preload and then lie with them the surface section each preloaded on a subset of balls thus loaded. This spills over each of the spring plates, viewed in the cross section of the bearing, the subset Outside across the longitudinal guide.

Alternatively, the inner sleeve is on everyone the sides pointing away from each other with at least one longitudinal slot provided to the longitudinal direction of the Camp is rectified. Extends along the longitudinal slot along the stripes Spring plate. The spring plate is perpendicular to the longitudinal direction through to the longitudinal slot running transverse slots limited in the inner sleeve, which merge into the longitudinal slot. Each of the spring plates thus runs transversely to the longitudinal axis at the beginning of the transverse slots from the inner sleeve lever-like. The spring plate is at least partially behind outside over the Contour of the outside facing sides of the inner sleeve out. Between the inboard side of the spring plate and a gap remains in the inner profile. The gap is at least so big that the spring plate when installing the ball guide and the inner profile in the outer sleeve and at Loads on the bearing can dodge freely without being on to fit the inner profile. On the outside of the spring plate is the inner surface section trained on which in the longitudinal guide Balls rest or on which the balls guided in the longitudinal guide roll. at assembling the ball guide with the inner sleeve and the outer sleeve the spring plates pointing away from each other elastically by a preload dimension towards the inside and then lie with the surface section each preloaded on a subset of balls thus loaded.

The degree of preload of each spring plate is on the one hand essentially dependent on the lever length with which the lengthways one behind the other aligned balls in the longitudinal guide across are spaced from the beginning of the transverse slots. On the other hand the degree of preload from the cross sections of the lever of the spring plate dependent. The preload increases with increasing lever length and / or with decreasing Cross section of the spring plate.

The balls of the unloaded subsets of each of the ball revolutions in the diversion either move below, as mentioned at the beginning the groove or the longitudinal guide freely between the outer sleeve and between the material of the ball guide that lies between the unloaded subset and the inner profile. alternative for this purpose, an embodiment of the invention provides that the necessary freedom for the balls on the spring plates of the outer sleeve is created. The spring plate cover at least part of the diversion from outside along and across and along and across the diversions to the outside returned to the outside of the affected subset of the balls. The spring plates are compared to the inner surface section starting from the entry of the balls from the longitudinal guide in the forwarding has been postponed, that inside out between the thought of the material of the ball guide or the inner profile There is sufficient play in the adjacent balls and the spring plate.

The bearing according to the invention is designed so that the profiles are elastically yielding via the balls on the spring plates until the highest operating torque. The bearing deflects when the upper limit of the operating torque is exceeded. The profiles lie "on a block" on the protection against overload lying between the profiles. The balls, the surface sections and the spring plates of the bearing are free of further higher loads after the highest operating torque has been exceeded. The protection according to the invention is at least one of them Ball guide longitudinally and separately to the ball guide as well as transverse to the longitudinal axis of the bearing directed support between the inner profile and the outer profile. The support is preferably made of sheet metal.

According to an embodiment of the invention is the support is at least one perforated disc that is in a bearing without an inner sleeve or those in a bearing with an inner sleeve encompasses the inner profile on the circumference and is encompassed by the outer sleeve is. The perforated disc faces outside and inside an interior corresponding to the respective profile and outer contour on. Between the perforated disc and between those facing away from each other faces of the inner profile or between the perforated disc and between the opposite each other Sides of the outer sleeve remain transverse to the longitudinal axis of the bearing on each side at least one gap at least in the Size of the operating game. After overcoming of the operating game by moving against each other under load Profiles, these are on the inside and outside of the perforated disc "on block".

It is one of the perforated disks or alternatively there are two of the perforated disks as protection against overload provided in the camp. Two of the washers take the ball guide along between themselves and are alternatively on the outer sleeve or on the inner profile attached by means of a press fit, for example.

According to a further embodiment the invention is the support integrally formed with the outer sleeve and is at least one inward from the outer sleeve protruding rim of the inner profile of the outer sleeve. Between the board and remains between the side faces of the inner profile facing away from one another transverse to the longitudinal axis the bearing at least the gap, the at least the operating game equivalent. The outer sleeve is alternatively, provide two of the shelves that hold the ball guide in longitudinal direction take between them.

In a further embodiment of the Invention is the pillar from at least one of each of the sides of the inner sleeve Outside towards the outer profile outgoing as well as with the inner sleeve one-piece sheet metal strip formed. Between the metal strip and between the facing side surfaces of the outer profile remains transverse to longitudinal axis the bearing at least the gap, the at least the operating game equivalent. The inner sleeve is alternatively on each of its long sides Provide with the metal strips that take the ball guide between them in the longitudinal direction. After overcoming of the operating game lies the outer sleeve or the outer profile on the metal strip and thus on the inner sleeve and is supported thus directly on the inner sleeve from.

In the operating game is in all previously mentioned cases takes into account the bearing clearance, so the operating game between the inside and outside profile at least half on each side the largest sum all tolerances to be compensated for by the elastic elements plus corresponds to at least 1/10 mm.

• a.) Zwischen dem Außenprofil und dem Innenprofil sitzt das Lager. Das Lager ist aus einer Außenhülse, aus Kugeln und aus einer Kugelführung gebildet. Die Außenhülse des Lagers, ist innen und außen mit einem von der kreisrunden Form abweichenden Querschnitt versehen, sitzt zwischen dem Außenprofil sowie dem Innenprofil und umfasst dabei das Innenprofil umfangsseitig. Die Außenhülse ist dabei in dem Außenprofil gestützt und längs unbeweglich gehalten, so dass die Außenhülse zu dem Außenprofil um die Drehachse nicht verdrehbar ist. Die Außenhülse weist zumindest vier Innenflächen auf, von denen sich gemäß der Funktion des Lagers. jeweils zwei der Innenflächen einander gegenüber liegen. Vorzugsweise ist die Außenhülse im Querschnitt im Wesentlichen ein Vierkantprofil mit abgerundeten Ecken. Der Querschnitt des in dem Außenprofil steckenden Innenprofils korrespondiert im Wesentlichen mit dem Querschnitt der Außenhülse. Jeder der Innenfläche an der Außenhülse liegt innen eine Außenfläche des Innenprofils gegenüber. Das Innenprofil weist damit zumindest außen, ebenso wie das die Außenhülse, einen von der kreisrunden Form abweichenden Querschnitt auf. Vorzugsweise ist das Innenprofil an der Welle ein hohles oder voll mit Material gefülltes sowie im Querschnitt im wesentlichen außen rechteckiges und mit abgerundeten Ecken gestaltetes Profil. Die Kugeln sind zwischen der Außenhülse und dem Innenprofil angeordnet, so daß sich die Wellen an dem Außenprofil über die Außenhülse sowie über die Kugeln und über die Oberfläche des Innenprofils quer zur Längsachse aneinander und um die Drehachse zueinander nicht verdrehbar gegeneinander abstützen.
• b.) Zwischen dem Außenprofil und dem Innenprofil sitzt das Lager. Das Lager ist aus einer Innenhülse, aus einer Außenhülse, aus Kugeln und aus einer Kugelführung gebildet. Die Außenhülse ist analog der Variante a.) gestaltet. Die Innenhülse des Lagers, ist mit einem von der kreisrunden Form innen und außen abweichenden und der Innenform der Außenhülse im wesentlichen angepassten Querschnitt versehen, sitzt zwischen der Außenhülse sowie dem Innenprofil und umfasst dabei das Innenprofil umfangsseitig. Die Innenhülse stützt sich dabei an dem Innenprofil ab, so dass die Innenhülse zu dem Innenprofil um die Drehachse nicht verdrehbar ist. Außerdem ist die Innenhülse auf dem Innenprofil längs unbeweglich gehalten. Die Kugeln sind zwischen der Innenhülse und der Außenhülse angeordnet, so dass sich die Wellen an dem Außenprofil über die Innenhülse, über die Kugeln sowie über die Außenhülse quer zur Längsachse aneinander und um die Drehachse zueinander nicht verdrehbar gegeneinander abstützen. Das Lager nach Variante a.) bzw. b.) ist zwischen Wellen eingesetzt, deren Profile alternativ zumindest Querschnitte nach folgenden Varianten aufweisen:
• c.) Das Außenprofil an der einen der aneinander gelagerten Wellen weist zumindest innen einen der kreisrunden Form entsprechenden Querschnitt oder einen nicht mit der Außenhülse korrespondierenden Querschnitt auf. Der Sitz der Außenhülse in dem Außenprofil ist z. B. mit einem Adapter abgesichert. Alternativ dazu ist die Außenhülse über geeignete sowie wahlweise einteilig mit der Außenhülse oder separat zu der Außenhülse ausgeführte Befestigungs- und/oder Stützelemente oder durch eine geeignete Außenkontur in dem Außenprofil um die Drehachse nicht verdrehbar und längs fest gehalten.
• d.) Das Außenprofil weist innen einen von der kreisrunden Form abweichenden Querschnitt auf, der durch die Konturen von vier Innenflächen bestimmt ist. Von den Innenfläche liegen sich jeweils zwei einander zugewandt gegenüber. Der Querschnitt der Außenhülse ist außen dem Querschnitt des Außenprofils innen im Wesentlichen angepasst. Die Außenhülse ist eng in dem Außenprofil geführt bzw. befestigt, so dass die Außenhülse aufgrund ihres mit dem Außenprofil korrespondierenden Querschnittes zu dem Außenprofil um die Drehachse nicht verdrehbar ist.
• e.) Das Innenprofil der in dem Außenprofil steckenden Welle weist zumindest außen einen der kreisrunden Form entsprechenden Querschnitt oder einen nicht mit der Außenhülse bzw. mit dem Außenprofil korrespondierenden Querschnitt auf. Der Sitz der Innenhülse auf dem Innenprofil ist z. B. mit einem Adapter abgesichert. Alternativ dazu ist die Innenhülse über geeignete sowie wahlweise einteilig mit der Innenhülse oder separat zu der Innenhülse ausgeführte Befestigungs- und/oder Stützelemente oder durch eine geeignete Innenkontur auf dem Innenprofil um die Drehachse nicht verdrehbar und längs fest gehalten. Die Innenhülse weist außen die vier Außenflächen auf. Jeder der Innenflächen an der Außenhülse liegt eine der Außenflächen an der Innenhülse gegenüber.
• f.) Der Querschnitt des in dem Außenprofil steckenden Innenprofils korrespondiert im Wesentlichen mit dem Querschnitt der Außenhülse. Jeder der Innenfläche an der Außenhülse liegt innen eine Außenfläche des Innenprofils gegenüber. Das Innenprofil weist damit zumindest außen, ebenso wie die Außenhülse, einen von der kreisrunden Form abweichenden Querschnitt auf. Vorzugsweise ist das Innenprofil ein hohles oder voll mit Material gefülltes sowie im Querschnitt im wesentlichen außen rechteckiges und mit abgerundeten Ecken gestaltetes Profil. Die Innenhülse des Lagers, ist mit einem von der kreisrunden Form innen und außen abweichenden und der Innenform der Außenhülse und der Außenform des Innenprofils im wesentlichen angepassten Querschnitt versehen, sitzt zwischen der Außen hülse sowie dem Innenprofil und umfasst dabei das Innenprofil umfangsseitig eng. Die Innenhülse stützt sich dabei an dem Innenprofil ab bzw. liegt eng an diesem an, so dass die Innenhülse aufgrund ihres mit dem Innenprofil korrespondierenden Querschnittes zu dem Innenprofil um die Drehachse nicht verdrehbar ist.

The bearing is preferably inserted between the polygonal profiles described at the beginning and alternatively between cylindrical profiles, so that the embodiments of the invention described below result:

• a.) The bearing sits between the outer profile and the inner profile. The bearing is made up of an outer sleeve, balls and a ball guide. The outer sleeve of the bearing is provided with a cross-section deviating from the circular shape on the inside and outside, sits between the outer profile and the inner profile and thereby encompasses the inner profile on the circumference. The outer sleeve is supported in the outer profile and held longitudinally immovable, so that the outer sleeve is not rotatable about the axis of rotation relative to the outer profile. The outer sleeve has at least four inner surfaces, one of which changes according to the function of the bearing. two of the inner surfaces are opposite each other. In cross section, the outer sleeve is preferably essentially a square profile with rounded corners. The cross section of the inner profile inserted in the outer profile corresponds essentially to the cross section of the outer sleeve. Each of the inner surface on the outer sleeve is opposite an outer surface of the inner profile. The inner profile thus has, at least on the outside, like the outer sleeve, a cross-section deviating from the circular shape. Preferably, the inner profile on the shaft is a hollow or fully filled with material and in cross-section essentially outer rectangular and designed with rounded corners. The balls are arranged between the outer sleeve and the inner profile, so that the shafts on the outer profile are supported against one another transversely to the longitudinal axis and via the balls and over the surface of the inner profile and not rotatable relative to one another about the axis of rotation.
• b.) The bearing sits between the outer profile and the inner profile. The bearing is formed from an inner sleeve, an outer sleeve, balls and a ball guide. The outer sleeve is designed analogously to variant a.). The inner sleeve of the bearing is provided with a cross section deviating from the circular shape on the inside and outside and essentially adapted to the inner shape of the outer sleeve, sits between the outer sleeve and the inner profile and in this case encompasses the inner profile on the circumference. The inner sleeve is supported on the inner profile so that the inner sleeve cannot be rotated about the axis of rotation relative to the inner profile. In addition, the inner sleeve is kept immovable longitudinally on the inner profile. The balls are arranged between the inner sleeve and the outer sleeve, so that the waves Support each other on the outer profile via the inner sleeve, the balls and the outer sleeve transversely to the longitudinal axis and not rotatable relative to one another about the axis of rotation. The bearing according to variant a.) Or b.) Is inserted between shafts, the profiles of which alternatively have at least cross sections according to the following variants:
• c.) The outer profile on one of the shafts mounted on one another has a cross section corresponding to the circular shape at least on the inside or a cross section which does not correspond to the outer sleeve. The seat of the outer sleeve in the outer profile is e.g. B. secured with an adapter. As an alternative to this, the outer sleeve cannot be rotated about the axis of rotation and is held longitudinally by suitable fastening elements and / or support elements, which are optionally made in one piece with the outer sleeve or separately from the outer sleeve, or by a suitable outer contour in the outer profile.
• d.) The outer profile has a cross-section deviating from the circular shape on the inside, which is determined by the contours of four inner surfaces. Two of the inner surface face each other. The cross section of the outer sleeve is essentially matched on the outside to the cross section of the outer profile on the inside. The outer sleeve is guided or fastened tightly in the outer profile, so that the outer sleeve cannot be rotated about the axis of rotation due to its cross section corresponding to the outer profile to the outer profile.
• e.) The inner profile of the shaft inserted in the outer profile has, at least on the outside, a cross section corresponding to the circular shape or a cross section not corresponding to the outer sleeve or to the outer profile. The seat of the inner sleeve on the inner profile is z. B. secured with an adapter. As an alternative to this, the inner sleeve cannot be rotated about the axis of rotation by means of suitable fastening elements and / or support elements, which are optionally made in one piece with the inner sleeve or separately from the inner sleeve, or by a suitable inner contour and is held longitudinally on the inner profile. The inner sleeve has the four outer surfaces on the outside. Each of the inner surfaces on the outer sleeve is opposite one of the outer surfaces on the inner sleeve.
• f.) The cross section of the inner profile inserted in the outer profile corresponds essentially to the cross section of the outer sleeve. Each of the inner surface on the outer sleeve is opposite an outer surface of the inner profile. The inner profile thus has a cross-section deviating from the circular shape, at least on the outside, just like the outer sleeve. The inner profile is preferably a hollow profile or one which is completely filled with material and is essentially rectangular in cross section on the outside and is designed with rounded corners. The inner sleeve of the bearing is provided with a cross-section that differs from the circular shape on the inside and outside and the inner shape of the outer sleeve and the outer shape of the inner profile is essentially matched, sits between the outer sleeve and the inner profile and encompasses the inner profile closely on the circumference. The inner sleeve is supported on the inner profile or lies closely against it, so that the inner sleeve cannot be rotated about the axis of rotation due to its cross section corresponding to the inner profile with respect to the inner profile.

The bearing is preferably on one Inner profile outside and into an outer profile used inside that of the previously described from the circular Have different cross-sectional shape because of the effort for the production of the camp is low. However, the use of adapters is not in applications ruled out in which the inner profile and / or the outer profile on the respective Shaft is cylindrical or hollow cylindrical or the profiles divergent and others for the transmission of torques have cross sections that do not correspond to one another. On Adapter is preferably made of plastic and in the outer profile or the inner sleeve poured, injected, pressed or snapped or on snapped onto the inner profile or the outer sleeve, pressed on, sprayed on. Alternatively, the inner profile is or is the outer sleeve with encapsulated in the plastic of the adapter. The adapter and the connection are as stiff as possible execute to the displacements of the interlocking shafts on the longitudinally displaceable Connection relative to one another along, across and around the longitudinal or Axis of rotation on the adapter and its connection as low as possible hold.

Bearings without inner sleeves have a relatively low overall height and therefore take up less space. They are preferably used in steering shafts with small cross sections and are inexpensive to manufacture. Since the balls run directly on the surface of the inner profile of a shaft, the surface of the inner profile must meet the requirements of a linear bearing for this purpose, at least in terms of hardness and roughness. The inner profile is therefore optionally hardened at least on the surface and z. B. processed by grinding on the surface. This processing of the inner profile is not necessary with the use of an inner sleeve in the bearing. Like the outer sleeve, the inner sleeve is preferably cold-formed. The surface hardened and leveled by the cold forming on the inner and outer raceways has a roughness that meets the requirements for a linear bearing for this purpose. The sheet metal parts are al alternatively on the surface or fully hardened. The outer sleeve and the inner sleeve are preferably made of cold-formable sheet steel, which can be hardened or hardened. The perforated disc is preferably made of stampable sheet metal, for. B. made of sheet steel and optionally hardenable.

The length compensation in the storage with a bearing according to the invention is guaranteed even with high steering torques on the steering wheel. Tensions and thus possibly destructions due to a non-working length compensation on the steering or in the camp are avoided. The storage according to the invention is smooth, so that for example at a steering torque of 20Nm on the steering wheel a displacement force of 50N has not been exceeded. The position the steering wheel is usually changed in the stationary vehicle, so that the displacement force is well below the value of 50N lies.

The torsional stiffness of the bearing according to the invention is z. B. up to a torque of 20Nm equal to or greater than 50Nm per degree of angle. The interlocking profiles thus twist the steering shaft around the axis of rotation per increase in operating torque by 5Nm by 1/10 ° to each other. In the bearing according to the aforementioned embodiment is elastic resilient portion at torques greater than approx. 20Nm z. B. by the Securing the bearing against overload replaced in the camp.

The invention is described below of embodiments explained in more detail. It demonstrate:

1 the cross section of a bearing according to the invention,

2 a longitudinal section of the camp 1 .

3 an outer sleeve of the bearing 1 as a single part,

4 a unit from the inner sleeve and ball guide of the bearing 1 .

5 an embodiment of an inner sleeve of the bearing 1 .

6 the inner sleeve after 5 on an inner profile,

7 an uncut view of the camp 1 from the front,

7a the detail U according to 7 .

8th another embodiment of a bearing according to the invention,

9 a cross section of the camp 8th .

10 a longitudinal section through the camp 8th .

11 an outer sleeve of the bearing 8th cut lengthways

12 the detail Z out 11 .

13 an uncut view of the camp according to 8th from the front,

14 a perforated disc from the bearing 8th .

15 an embodiment of a in the camps 1 and 8th usable ball guide,

16 a section through the redirection of the ball guide 15 , cut along the line XVI-XVI and

17 a section through the longitudinal guide of the ball guide 15 , cut along the line XVII-XVII.

detailed Description of the drawings

The 1 to 7 show an embodiment of a bearing 1 according to the invention in different views and different parts of the camp 1 , In 1 is a cross section and in 2 a longitudinal section of the camp 1 between an inner profile 2 and an outer profile 3 shown. The warehouse 1 is used for longitudinally movable storage of the inner profile 2 and the outer profile 3 together. The inner profile 2 and the outer profile 3 are along a longitudinal axis 1a camp 1 movable relative to each other. Between the profiles 2 and 3 are by means of the warehouse 1 Torques transferable. The warehouse 1 consists of a sleeve 29 in the form of an outer sleeve 5 , from a ball guide 6 and from another sleeve 29 in the form of an inner sleeve 7 , Furthermore, the camp 1 resilient elements 8th to compensate for a camp game in the camp 1 and fuses 9 against overload.

In the 15 to 17 is a ball guide 6 as a single part, partly with balls 4 and presented in different sections, both in terms of their characteristics in the camp 1 to 1 in the camp as well 30 to 8th is usable. The ball guide 6 is in one piece with recirculating balls 10 trained and in the camp 1 inside in the outer profile 3 between the outer sleeve 5 and the inner profile 2 arranged. The ball guide 6 is designed as a four-sided hollow profile and has two of the ball revolutions on each side 10 on. In every ball circulation 10 runs with telescopic movements of the inner profile 2 to the outer profile 3 a row 11 with the balls 4 of the same diameter.

A ball orbit 10 is in 15 with balls 4 shown filled. The ball recirculation 10 consists of a longitudinal guide 12 , from two diversions 16 and from a repatriation 14 , With a telescopic movement, the longitudinal guide runs through 12 a polluted subset 13 , The balls 4 then move one after the other into one of the diversions 16 , The diversion 16 is from a second unloaded subset 17 the series 11 go through, which then turns into a first unloaded subset 15 in the repatriation 14 and then into the unloaded subset 17 another diversion 16 line up and finally in the longitudinal guide 12 back ge leads are. The subsets 13 . 15 . 17 are in 15 each framed by a dashed line. The longitudinal guide 12 and the repatriation 14 run parallel to each other and are parallel to the longitudinal axis 1a aligned. The diversions 16 run in an arc and connect the longitudinal guide 12 with the repatriation 14 , The balls 4 each of the rows 11 are inward towards the inner profile 2 as well as outwards in the direction of the outer profile 3 through the material of the ball guide 6 in one ball circulation 10 held.

The longitudinal guide 12 is slit-like ( 17 ). This is the ball guide 6 transverse to the longitudinal axis 1a from the inside towards the inner profile 2 outwards in the direction of the outer sleeve 5 openwork and in cross-section of the camp 1 to 1 or 12 viewed laterally from the material of the ball guide 6 limited. The largest free distance A1 between the material of the ball guide in the longitudinal guide 12 corresponds to transverse to the longitudinal axis 1a at least the ball diameter of each of the balls 4 in line 11 , plus a backlash between the balls 4 and the walls of the longitudinal guide 12 of approx. 3/10 mm. The balls 4 the subset loaded 13 are in the longitudinal guide 12 inwards towards the inner profile 2 on opposite edges 18 the longitudinal guide 12 as well as outwards in the direction of the outer profile 3 on opposite edges 19 held. For this purpose, the greatest distance A1 between the side walls and the inner and outer edges is reduced 18 respectively. 19 towards the distance A2. The distance A2 between the opposite edges 18 respectively. 19 is smaller than the diameter of each of the balls 14 the series 11 , The balls are still standing 4 the subset loaded 13 inside and outside on the longitudinal guide 12 about the ball guide 6 out.

Each of the redirects 16 runs at least partially in an arc shape, is at least partially slit-like and is at least partially inward to the inner profile 2 back and forth to the outer sleeve 5 open towards. The balls 4 the second unloaded subset 17 in each of the diversions 16 are inside to the inner profile 2 as well as outwards to the outer profile 3 analogous to the balls of the loaded subset 11 ( 17 ) or analogous to the balls of the first unloaded subset 15 in the repatriation 14 ( 16 ) held.

The repatriation 14 is groove-shaped and is inward to the inner profile 2 through the material of the ball guide 6 fully completed ( 16 ). Outward to the outer sleeve 5 is the return 14 open. The balls 4 are in return 14 outwards to the outer sleeve 5 towards the return 14 held. The return towers above this 14 an overhang on the outside 24 which is the free cross section of the return 14 reduced so that the distance A1 is reduced to a distance A3. The distance A3 is smaller than the diameter of each of the balls 14 the series 11 , Repatriation is an alternative 14 slits open inwards and outwards and or the diversions 16 are analogous to repatriation 14 groove-shaped.

The outer sleeve 5 of the camp 1 to 1 and 2 made of sheet metal sits firmly in the outer profile 3 as well as between the outer profile 3 and the bullets 4 , In the 3 outer sleeve shown as a single part 5 has the cross section of a multi-sided hollow profile with preferably an even number of sides 5a. Each of the four sides 5a of the outer sleeve 5 has an inwardly facing side surface 5b on, of which there are two, the inner profile 2 between themselves, facing each other. Each of the side faces 5b are two of the ball revolutions 10 assigned. The ball revolutions 10 on one side 5a are in a plane transverse to the longitudinal axis 1a arranged side by side. Here are the returns 14 immediately adjacent to each other. The sheet of the outer sleeve 5 is on each of the side surfaces 5b along and across the diversions of the two ball circuits 10 inside out over the return 14 and at least partially above the diversions 16 put away so that the unpolluted subsets 15 and 17 transverse to the longitudinal axis 1a are arranged to be movable relative to the outer sleeve 5 by a play X ( 1 and 7a ).

The inner sleeve 7 the inner profile is made of sheet metal 2 circumferential and is between the inner profile 2 and the bullets 4 as well as relative to the inner profile 2 firmly arranged. The inner sleeve shows 7 the cross section of a multi-sided hollow profile with preferably an even number of outward-facing side surfaces 7a on, with the outward side surfaces 7a outside one of the sides 5a of the outer sleeve 5 opposite.

In the camp 1 that is transverse to the longitudinal axis 1a directional bearing play elastic by means of the spring-elastic elements 8th balanced. Each of the subsets charged 13 in each of the longitudinal guides 12 is at least by means of at least one of the elements elastically spring-loaded at least by half of the bearing play 8th from the inside to the outside against one of the sides 5a of the outer sleeve 5 biased. The resilient elements 8th are in one piece with the inner sleeve 7 trained spring plates 20 from the sheet of the inner sleeve 7 , One of the spring plates at a time 20 is by at least half of the bearing clearance corresponding preload against at least a subset 13 the series 11 one of the longitudinal guides 12 biased. From each side surface facing outwards 7a the inner sleeve go two of the spring plates 20 and each tension one of the contaminated subsets 13 against the outer sleeve 5 before so the inner profile 2 and the outside profile 3 are supported against each other without play.

In 5 is the inner sleeve 7 as a single part and in 6 on the inner profile 6 shown. The inner sleeve 7 on each of the outward side surfaces 7a with two to the longitudinal axis 1a rectified longitudinal slots 21 Mistake. Each of the spring plates 20 extends in a strip shape along one of the longitudinal slots 21 , Furthermore, the inner sleeve 7 transverse to the longitudinal axis 1a running transverse slots 22 on the right angle in the longitudinal slot 21 lead. The spring plate 20 is between the cross slots 22 and at their free end 23 through the longitudinal slot 21 from the inner sleeve 7 separated, runs cranked at first and then extends in a lever-like manner from the inner sleeve 7 from. Due to the cranked course of the spring plate 20 is secured that the spring plate 20 towards the outer profile 5 protrudes and between the spring plate 20 and the inner profile 6 a gap dimension S is formed ( 6 ). The gap dimension S ensures that the spring plate 20 when mounting the bearing 1 and when the bearing is under load 1 elastic when driving in the direction of the inner profile 6 can dodge.

The fuse 9 protects against overload, that the transverse to the longitudinal axis 1a moved against each other and transversely to the longitudinal axis 1a on the fuse 9 supporting profiles 2 . 3 or sleeves 29 after overcoming the operating game Y ( 7 and 7a ) the resilient elements 8th do not damage. The fuse 9 of the camp 1 is one of the ball guides 6 longitudinally adjoining and for ball guidance 6 separate and across the longitudinal axis 1a of the camp 1 directional prop 25 respectively. 27 , The support 25 respectively. 27 is in one piece with the inner sleeve 7 educated. Four metal strips on each of the long sides 26 or 28 of the inner sleeve 7 are as supports 25 respectively. 27 towards the outer profile 3 angled and on the support 27 additionally folded back by 180 °. The metal strips 27 hold the ball guide 6 lengthways between them. How out 4 emerges are the ball guide 6 with balls and the inner sleeve 7 to one unit 28 before assembly in the outer sleeve 5 preassembled.

The 8th to 14 show a further embodiment of the invention. A warehouse 30 is shown in different views and details. The warehouse 30 is from a sleeve 29 in the form of an outer sleeve 31 , from the ball guide 6 and from a perforated disc 32 educated.

The outer sleeve 31 of the camp 30 made of sheet metal sits firmly in the outer profile 3 as well as between the outer profile 3 and the bullets 4 , In the camp 30 that is transverse to the longitudinal axis 30a directional bearing play elastic by means of the spring-elastic elements 8th balanced. Each of the subsets charged 13 in each of the longitudinal guides 12 is at least by means of at least one of the elements elastically spring-loaded at least by half of the bearing play 8th from the outside in against one on one side 2a of the inner profile 2 adjacent subset 13 biased. The resilient elements 8th are in one piece with the outer sleeve 31 spring plates made of sheet metal 33 , The spring plates 33 cover the longitudinal guides 12 along and across from the outside. The outer sleeve 31 has the cross section of a multi-sided hollow profile with preferably an even number of mutually opposite sides 31a on. Each of the four sides 31a the outer sleeve 31 has an inwardly facing side surface 31b on, of which there are two, the inner profile 2 between themselves, facing each other. Each of the side faces 31b are two of the ball revolutions 10 assigned. The ball revolutions 10 on one side 31a are in a plane transverse to the longitudinal axis 30a arranged side by side. Here are the returns 14 immediately adjacent to each other. Each of two opposite sides 31a points, the inner profile 2 transversely to the longitudinal axis between them, two of the spring plates 33 on.

The outer sleeve 31 is like in 8th and 11 shown on each of the opposite sides 31a with two longitudinal slots aligned with the longitudinal axis 34 Mistake. One of the spring plates at a time 33 extends in a strip shape along one of the longitudinal slots 34 , In addition, the outer sleeve 31 transverse to the longitudinal direction and perpendicular to the longitudinal slot 34 trending and in the longitudinal slot 34 passing transverse slots 35 on. The spring plate 33 runs along the transverse slot 35 initially cranked and then stands like a lever from the outer sleeve 31 from. Due to the cranked course of the spring plate 33 is secured that the spring plate 33 inside into the outer sleeve 31 protrudes and between the spring plate 33 and the outer profile 3 a gap dimension S is formed. The gap dimension S ensures that the spring plate 33 when mounting the bearing 30 and when the bearing is under load 30 elastic when driving in the direction of the outer profile 3 can dodge.

Each of the spring plates 33 overlaps the diversions 16 one of the two sides of each 31a assigned ball revolutions 10 partially. Here is the spring plate 33 at the longitudinal ends 33a of unloaded bullets 4 away as far out towards the outer profile 3 deferred that the unloaded bullets 4 transversely to the longitudinal direction outwards between the inner profile 2 and the ends 33a are arranged to be movable around an increasing play X '(detail Z in 11 and in 12 ).

The sheet of the outer sleeve 31 is on each side 31a along and across the diversions 16 as well as over the returns 14 of two adjacent ball revolutions 10 by means of a formation 36 reset to the outside so that the balls 4 of the unpolluted subsets 15 . 17 transverse to the longitudinal direction between the inner profile 2 and the formation 36 are arranged to be movable at least by a play of movement X.

The support 25 is a one-piece with the outer sleeve 31 from the sheet of the outer sleeve 31 formed board 37 on one long side of the outer sleeve 31 or the support is the perforated disc 32 on the other long side. The board 35 is circumferential on the outer sleeve 31 trained and points in the direction of the inner profile 2 , The board 37 is transverse to the longitudinal axis in all directions 30a of the camp 30 to the inner profile 2 at least by the operating clearance Y to the inner profile 2 spaced ( 10 ). The fuse 9 against overload in the form of the board 35 secures the cross to the longitudinal axis 30a moved against each other and transversely to the longitudinal axis 30a on the fuse 9 supporting profiles 2 . 3 or sleeves 29 after overcoming the operating clearance Y, the resilient elements 8th do not damage.

The perforated disc 32 is in 14 individually and in 13 in stock 30 shown installed and inside and outside essentially the cross sections of the inner profile 2 or the outer sleeve 31 customized. The ball guide 6 is in the outer sleeve 31 attached. For this purpose, the ball guide is on one long side of the outer sleeve 31 by means of the board 37 and on the other long side by means of the perforated disc 32 held. The perforated disc 32 is by means of a flanged edge 38 firmly in the outer sleeve 31 rolled ( 10 ).

1

camp

1a

longitudinal axis

2

internal profile

2a

page

3

outer profile

4

Bullet

5

outer sleeve

5a

page

5b

side surface

6

ball guide

7

inner sleeve

7a

side surface

8th

resilient element

9

fuse

10

recirculating ball

11

line

12

longitudinal guide

13

loaded subset

14

return

15

first unloaded subset

16

detour

17

second unloaded subset

18

edge

19

edge

20

spring plate

21

longitudinal slot

22

transverse slot

23

The End

24

overhang

25

support

26

long side

27

support

28

long side

29

shell

30

camp

30a

longitudinal axis

31

outer sleeve

31a

page

31 b

side surface

32

perforated disc

33

spring plate

33a

The End

34

longitudinal slot

35

transverse slot

36

formation

37

shelf

38

beaded

Claims (51)

Camp ( 1 . 30 ) for longitudinally movable storage of an inner profile ( 2 ) and an outer profile ( 3 ) to each other, the inner profile ( 2 ) and the outer profile ( 3 ) along a longitudinal axis ( 1a . 30a ) of the camp ( 1 . 30 ) are movable relative to each other and the bearing ( 1 . 30 ) Torques between the inner profile ( 2 ) and the outer profile ( 3 ) transfers the bearing ( 1 . 30 ) With - one inside in the outer profile ( 3 ) and between the outer profile ( 3 ) and balls ( 4 ) arranged and to the outer profile ( 3 ) fixed outer sleeve ( 5 . 31 ) made of sheet metal, - at least one ball guide ( 6 ) with recirculating balls ( 10 ), - spring elastic elements ( 8th ) to compensate for bearing play and with - one between the outer profile ( 3 ) and the inner profile ( 2 ) arranged fuse ( 9 ) against overload, and each of the ball revolutions ( 10 ) from - one row ( 11 ) the balls ( 4 ), - a longitudinal guide ( 12 ) with a contaminated subset ( 13 ) the balls ( 4 ) the series ( 11 ), - a return ( 14 ) with a first unloaded subset ( 15 ) Bullets ( 4 ) the series ( 11 ) and - two the longitudinal guide ( 12 ) with the return ( 14 ) connecting diversions ( 16 ), the redirects ( 16 ) each with a second unloaded subset ( 17 ) Bullets ( 4 ) the series ( 11 ), where in the camp ( 1 . 30 ) transverse to the longitudinal axis ( 1a . 30a ) directional bearing play is elastically balanced and each of the loaded subsets ( 13 ) by means of at least one of the elements elastically spring-loaded at least by half of the bearing play ( 8th ) is loaded, whereby the inner profile ( 2 ) and the outer profile ( 3 ) by means of the warehouse ( 1 . 30 ) are preloaded against each other by the bearing play without play and the transverse to the longitudinal axis ( 1a . 30a ) moved against each other and transversely to the longitudinal axis ( 1a . 30a ) on the elastic elements ( 8th ) supporting profiles ( 2 . 3 ) at the narrowest point between the outer profile ( 3 ) and the inner profile ( 2 ) are freely movable relative to each other by at least one operating clearance and the inner profile ( 2 ) and the outer profile ( 3 ) after overcoming the operating game on the fuse ( 9 ) against each other against overload, characterized in that the ball guide ( 6 ) in one piece with at least one ball recirculation ( 10 ) is formed, the ball guide ( 6 ) inside in the outer profile ( 3 ) between the outer sleeve ( 5 . 31 ) and the inner profile ( 2 ) is arranged and that the fuse ( 9 ) at least one each of the ball guide ( 6 ) longitudinally adjoining and for ball guidance ( 6 ) separate and across the longitudinal axis ( 1a . 30a ) of the camp ( 1 . 30 ) directed support ( 25 . 27 ) is ( 1 . 2 . 9 . 10 and 15 ). Bearing according to claim 1, characterized in that the outer sleeve ( 5 . 31 ) the cross section of a multi-sided hollow profile, preferably with an even number of sides ( 5a . 31a ) having ( 3 and 8th ). Bearing according to claim 2, characterized in that the support ( 25 ) in one piece with the outer sleeve ( 31 ) from the sheet of the outer sleeve ( 31 ) is formed ( 10 and 11 ). Bearing according to claim 3, characterized in that the support ( 25 ) at least one of the outer sleeve ( 31 ) towards the inner profile ( 2 ) outgoing board ( 37 ) is ( 10 and 11 ). Bearing according to claim 4, characterized in that the board ( 35 ) on an unloaded warehouse ( 30 ) in all directions across the longitudinal axis ( 30a ) to the inner profile ( 2 ) is at least spaced by the operating clearance ( 10 ). Bearing according to claim 1, characterized in that the support ( 25 ) a perforated disc ( 32 ), the perforated disc ( 32 ) the inner profile ( 2 ) grips outside and the perforated disc ( 32 ) outside of the outer sleeve ( 31 ) is encompassed ( 8th and 10 ). Bearing according to claim 6, characterized in that the perforated disc ( 32 ) in the outer sleeve ( 31 ) is attached and that the perforated disc ( 32 ) on the unloaded bearing ( 30 ) in all directions across the longitudinal axis ( 30a ) at least about the operating clearance to the inner profile ( 2 ) is spaced ( 10 ). Bearing according to claim 2, characterized in that in each case an inwardly facing side surface ( 5b . 31b ) on one of four sides ( 5a . 31a ) the outer sleeve ( 5 . 31 ) at least one of the ball revolutions ( 10 ) is assigned, whereby two of the side surfaces ( 5b . 31b ), the inner profile ( 2 ) lying between each other ( 9 ). Bearing according to claim 8, characterized in that each of the side surfaces ( 5b . 31b ) two of the ball revolutions ( 10 ) assigned ( 9 ). Bearing according to claim 8 or 9, characterized in that the bearing ( 1 . 30 ) a one-piece ball guide ( 6 ), whereby in the ball guide ( 6 ) the ball revolutions ( 10 ) are trained ( 15 ). Bearing according to claim 1, characterized in that the balls ( 4 ) the series ( 11 ) towards the inside profile ( 2 ) as well as towards the outside profile ( 3 ) through the material of the ball guide ( 6 ) in the ball circulation ( 10 ) are kept ( 15 . 16 . 17 ). Bearing according to claim 1, characterized in that the longitudinal guide ( 12 ) is slit-like, the longitudinal guide ( 12 ) the ball guide ( 6 ) transverse to the longitudinal axis ( 1a . 30a ) from the inside towards the inner profile ( 2 ) outwards in the direction of the outer profile ( 3 ) breaks through and in the cross section of the bearing ( 1 . 30 ) viewed laterally from the material of the ball guide ( 6 ) is limited and in the longitudinal guide ( 12 ) the greatest free distance between the material of the ball guide ( 6 ) transverse to the longitudinal axis ( 1a . 30a ) at least the ball diameter of the largest sphere ( 4 ) in the ball circulation ( 10 ) corresponds to ( 15 and 17 ). Bearing according to claim 12, characterized in that the balls ( 4 ) of the loaded subset ( 13 ) in the longitudinal guide ( 12 ) inside at opposite edges ( 18 ) the longitudinal guide ( 12 ) as well as to the outside on opposite edges ( 19 ) the longitudinal guide ( 12 ) are kept ( 17 ). Bearing according to claim 12 or 13, characterized in that the balls ( 4 ) of the loaded subset ( 13 ) towards the inside profile ( 2 ) and outwards in the direction of the outer sleeve ( 3 ) at least on the longitudinal guide ( 12 ) via the ball guide ( 6 ) out of the longitudinal guide ( 12 ) protrude, with the balls ( 4 ) of the loaded subset ( 13 ) on the outer sleeve ( 3 ) issue ( 17 ). Bearing according to claim 1, characterized in that the diversion ( 16 ) is at least partially arcuate and at least partially slit-like, the slit-like diversion ( 16 ) inwards to the inner profile ( 2 ) back and forth to the outer profile ( 3 ) is open and that the balls ( 4 ) of the second unloaded subset ( 17 ) each of the diversions ( 16 ) inwards to the inner profile ( 2 ) and outwards to the outer profile ( 3 ) are kept in the diversion ( 12 and 16 ). Bearing according to claim 15, characterized in that the balls ( 4 ) in the diversions ( 16 ) from inside to outside across the longitudinal axis ( 1a . 30a ) to the outer sleeve ( 5 . 31 ) are mobile ( 12 and 16 ). Bearing according to claim 16, characterized in that the balls ( 4 ) in the diversions ( 16 ) from inside to outside across the longitudinal axis ( 1a . 30a ) at least around the operating clearance to the outer sleeve ( 5 ) are mobile ( 16 ). Bearing according to claim 1, characterized in that the return ( 14 ) is groove-shaped and parallel to the longitudinal guide ( 12 ) runs, with the return ( 14 ) is closed towards the inside profile by the material of the ball guide and the return ( 14 ) to the outside profile ( 3 ) is open and that the balls ( 4 ) in return ( 12 ) to the outside profile ( 3 ) towards the return ( 12 ) are held, with the balls ( 4 ) of the first unloaded subset ( 15 ) in return ( 14 ) from inside to outside across the longitudinal axis ( 1a . 30a ) are movable to the outer sleeve ( 15 and 16 ). Bearing according to claim 18, characterized in that the balls ( 4 ) from inside to outside across the longitudinal axis ( 1a . 30a ) to the outer sleeve ( 5 . 31 ) are movable at least around the operating clearance ( 16 ). Bearing according to claim 2, characterized in that the loaded partial quantities ( 13 ) of each of the ball revolutions ( 10 ) in each case at least by means of one of the longitudinal guides over the longitudinal guide ( 12 ) running as well as inwards against the balls ( 4 ) prestressed of the resilient elements ( 8th ) is loaded and the balls ( 4 ) of the contaminated subsets ( 13 ) with longitudinal movements of the profiles ( 2 . 3 ) against each other on the elastic elements ( 8th ) aligned with the longitudinal axis ( 1a ) roll along ( 8th . 9 and 11 ). Bearing according to claim 20, characterized in that the resilient elements ( 8th ) in one piece with the outer sleeve ( 31 ) trained spring plates ( 33 ) from the sheet of the outer sleeve ( 31 ), whereby one of the spring plates ( 33 ) by a preload dimension corresponding to at least half the bearing clearance against at least one loaded subset ( 13 ) Bullets ( 4 ) the series ( 11 ) in one of the longitudinal guides ( 12 ) is biased and the spring plate ( 33 ) the balls ( 4 ) against the inner profile ( 2 ) and where each of the opposite side surfaces ( 31b ) the outer sleeve ( 31 ) at least one of the spring plates ( 33 ), whereby the inner profile ( 2 ) and the outer profile ( 3 ) are biased against each other without play ( 8th . 9 . 11 ). Bearing according to claim 21, characterized in that the outer sleeve ( 33 ) on each of the opposite sides (33a) with at least one to the longitudinal axis ( 30a ) rectified longitudinal slot ( 34 ) is provided, the spring plate ( 33 ) stripes along the longitudinal slot ( 34 ) extends and that the outer sleeve ( 33 ) transverse to the longitudinal direction and perpendicular to the longitudinal slot ( 34 ) running and in the longitudinal slot ( 34 ) transversal cross slots ( 35 ), the spring plate ( 33 ) between the cross slots ( 35 ) at least transversely lever-like from the outer sleeve ( 33 ) emerges ( 8th and 11 )). Bearing according to claim 22, characterized in that the spring plate ( 33 ) at least partially inwards into the outer sleeve ( 31 ) is biased, with each of the spring plates ( 33 ) at least one of the subsets ( 13 ) of the longitudinal guides ( 12 ), in the cross section of the bearing ( 30 ) viewed, outside across the longitudinal axis ( 30a ) overlaps ( 9 and 10 ). Bearing according to claim 2, characterized in that the sheet of the outer sleeve ( 5 . 31 ) along and across the diversions ( 16 ) from the inside outwards from the second unloaded submenu gen ( 17 ) is put away so that the balls ( 4 ) of the second unloaded subsets ( 17 ) transverse to the longitudinal axis ( 1a . 30a ) from the inside to the outside relative to the outer sleeve ( 5 . 31 ) are movably arranged ( 16 ). Bearing according to claim 24, characterized in that the balls ( 4 ) of the second unloaded subsets ( 17 ) transverse to the longitudinal axis ( 1a . 30a ) from the inside to the outside relative to the outer sleeve ( 5 . 31 ) are arranged to be movable at least around the operating clearance ( 16 ). Bearing according to claim 2, characterized in that the resilient elements ( 8th ) in one piece with the outer sleeve ( 31 ) trained spring plates ( 33 ) from the sheet of the outer sleeve ( 31 ), whereby one of the spring plates ( 33 ) by a preload dimension corresponding to at least half of the bearing clearance against at least one of the loaded partial quantities ( 13 ) is biased and the balls ( 4 ) against the inner profile ( 2 ) and each of the opposite sides ( 31a ) the outer sleeve ( 31 ) at least one of the spring plates ( 33 ) and that each of the spring plates ( 33 ) the diversions ( 16 ) one of the rounds ( 10 ) overlaps at least partially and thereby from the balls ( 4 ) of the second unloaded subsets ( 17 ) is set back so far outwards that the balls ( 4 ) transverse to the longitudinal axis ( 30a ) from inside to outside relative to the spring plates ( 33 ) are movably arranged ( 12 ). Bearing according to claim 2, characterized in that the sheet of the outer sleeve ( 5 . 31 ) along and across the return ( 14 ) inside out from the first unloaded subset ( 15 ) is put away so that the balls ( 4 ) of the first unloaded subset ( 15 ) transverse to the longitudinal axis ( 1a . 30a ) from the inside to the outside relative to the outer sleeve ( 5 . 31 ) are movably arranged ( 1 and 9 ). Bearing according to claim 27, characterized in that the first unloaded subset ( 15 ) Bullets ( 4 ) transverse to the longitudinal axis ( 1a . 30a ) from the inside to the outside relative to the outer sleeve ( 5 . 31 ) is arranged to be movable at least around the operating clearance ( 1 and 9 ). Bearing according to claim 2, characterized in that the bearing ( 1 ) the inner profile ( 2 ) comprehensive on the circumference and between the inner profile ( 2 ) and the balls ( 4 ) arranged inner sleeve ( 7 ) made of sheet metal, the inner sleeve ( 7 ) relative to the inner profile ( 2 ) is fixed ( 1 . 2 . 6 and 7 ). Bearing according to claim 29, characterized in that the inner sleeve ( 7 the cross section of a multi-sided hollow profile with preferably an even number of outwardly directed side surfaces ( 7a ), the outward-facing side surfaces ( 7a ) the inner sleeve ( 7 ) one side of each outside ( 5a ) of the outer profile ( 5 ) is opposite ( 1 . 5 and 7 ). Bearing according to claim 30, characterized in that the support ( 25 . 27 ) in one piece with the inner sleeve ( 7 ) from the sheet of the inner sleeve ( 7 ) is formed ( 2 . 5 and 6 ). Bearing according to claim 31, characterized in that the support ( 25 . 27 ) from the sheet of the inner sleeve ( 7 ) is angled outwards and from the outward side surface ( 7a ) goes off ( 2 . 5 and 6 ). Bearing according to claim 31, characterized in that the support ( 25 . 27 ) on the unloaded bearing ( 1 ) from inside to outside across the longitudinal axis ( 1a ) to the outer sleeve ( 5 ) is at least spaced by the operating clearance ( 7a ). Bearing according to claim 29, characterized in that the in the longitudinal guide ( 12 ) burdened subset ( 13 ) of each of the ball revolutions ( 10 ) by means of at least one against the balls from the inside ( 4 ) prestressed of the resilient elements ( 8th ) is loaded, whereby the balls ( 4 ) of the loaded subset ( 13 ) with longitudinal movements of the profiles ( 2 . 3 ) on the spring element ( 8th ) relative to the longitudinal axis ( 1a ) roll along ( 1 ). Bearing according to claim 29, characterized in that the spring-elastic elements ( 8th ) in one piece with the inner sleeve ( 7 ) trained spring plates ( 20 ) from the sheet of the inner sleeve ( 7 ), whereby one of the spring plates ( 20 ) by a preload dimension corresponding to at least half the bearing clearance against at least one loaded subset ( 13 ) one of the longitudinal guides ( 12 ) is biased and the balls ( 4 ) against the outer sleeve ( 5 ) and with each of the outwardly facing side surfaces ( 7a ) at least one of the spring plates ( 20 ) comes off, whereby the inner profile ( 2 ) and the outer profile ( 3 ) are biased against each other without play ( 1 and 5 ). Bearing according to claim 30, characterized in that the inner sleeve ( 7 ) on each of the outward-facing side surfaces ( 7a ) with at least one to the longitudinal axis ( 1a ) rectified longitudinal slot ( 21 ) is provided, the spring plate ( 20 ) stripes along the longitudinal slot ( 21 ) extends and that the inner sleeve ( 7 ) transverse to the longitudinal direction and perpendicular to the longitudinal slot ( 21 ) running and in the longitudinal slot ( 21 ) transversal cross slots ( 22 ), the spring plate ( 20 ) between the cross slots ( 22 ) too at least transversely to the longitudinal axis ( 1a ) lever-like from the inner sleeve ( 7 ) protrudes ( 5 and 6 ). Bearing according to the preamble of claim 1, characterized in that the spring-elastic elements ( 8th ) in one piece with an inner profile ( 2 ) encompass the circumference and thereby the longitudinal guides ( 12 ) along and across the longitudinal axis ( 1a . 30a ) overlying sleeve made of sheet metal spring plates ( 20 . 33 ), the sleeve ( 29 the cross-section of a multi-sided hollow profile, preferably with an even number of sides that are opposite one another in pairs ( 5a . 31a ) and one of the spring plates ( 20 . 33 ) by a preload dimension corresponding to at least half the bearing clearance against at least one loaded subset ( 13 ) Bullets ( 4 ) the series ( 11 ) one of the longitudinal guides ( 12 ) is biased and the balls ( 4 ) of the loaded subset ( 13 ), with longitudinal movements of the profiles ( 2 . 3 ) against each other, thereby on the spring element ( 8th ) to the longitudinal axis ( 1a ) roll along and that each of the opposite sides ( 5a . 31a ) the sleeve ( 29 ), the inner profile ( 2 ) transverse to the longitudinal axis ( 1a ) between them, at least one of the spring plates ( 20 . 33 ) having ( 1 . 5 . 6 . 8th . 9 and 11 ). Bearing according to claim 37, characterized in that the sleeve ( 29 ) on each of the opposite sides ( 5a . 31a ) with at least one to the longitudinal axis ( 1a . 30a ) rectified longitudinal slot ( 21 . 34 ) is provided, the spring plate ( 20 . 33 ) stripes along the longitudinal slot ( 21 . 34 ) extends and that the sleeve ( 29 ) transverse to the longitudinal direction and perpendicular to the longitudinal slot ( 21 . 34 ) running and in the longitudinal slot ( 21 . 34 ) transversal cross slots ( 22 . 35 ), the spring plate ( 20 . 33 ) along the cross slot ( 22 . 35 ) cross lever-like out of the sleeve ( 29 ) emerges ( 5 . 6 . 8th and 11 ). Bearing according to claim 38, characterized in that the sleeve ( 29 ) the outer sleeve ( 31 ), whereby the on the outer sleeve ( 31 ) trained spring plates ( 33 ) the balls ( 4 ) against the inner profile and each of the opposite sides ( 31a ) the outer sleeve ( 31 ) at least one of the spring plates ( 33 ), whereby the inner profile ( 2 ) and the outer profile ( 3 ) are biased against each other without play ( 8th . 9 and 11 ). Bearing according to claim 39, characterized in that each of the spring plates ( 33 ) the diversions ( 16 ) one of the rounds ( 10 ) overlaps at least partially and thereby from the second unloaded subsets ( 17 ) away as far back as possible; so the balls ( 4 ) of the second unloaded subsets ( 17 ) transverse to the longitudinal axis ( 1a ) outwards relative to the spring plates ( 33 ) are arranged to be movable around a movement game ( 16 ). Bearing according to claim 37, characterized in that the support ( 25 ) in one piece with the outer sleeve ( 31 ) from the sheet of the outer sleeve ( 31 ) is formed ( 10 and 11 ). Bearing according to claim 41, characterized in that the support ( 25 ) at least one of the outer sleeve ( 31 ) towards the inner profile ( 2 ) outgoing board ( 37 ) is ( 10 and 11 ). Bearing according to claim 42, characterized in that the rim ( 37 ) in all directions across the longitudinal axis ( 30a ) to the inner profile ( 2 ) is at least spaced by the operating clearance ( 10 ). Bearing according to claim 38, characterized in that the sheet of the outer sleeve ( 5 . 31 ) along and across the diversions ( 16 ) and above the return ( 14 ) inside out from the balls ( 4 ) of the unloaded subsets ( 15 . 17 ) the series ( 11 ) is set back outwards so that the balls ( 4 ) of the unloaded subsets ( 15 . 17 ) transverse to the longitudinal axis ( 1a . 30a ) from the inside to the outside in the diversion ( 16 ) relative to the outer sleeve ( 5 . 31 ) are movably arranged ( 1 . 9 and 16 ). Bearing according to claim 44, characterized in that the balls ( 4 ) of the unloaded subsets ( 15 . 17 ) transverse to the longitudinal axis ( 1a . 30a ) from the inside to the outside relative to the outer sleeve ( 5 . 31 ) movable at least around the operating clearance in the diversion ( 16 ) and the repatriation ( 14 ) are arranged ( 1 . 9 and 16 ). Bearing according to claim 38, characterized in that each of the spring plates ( 20 . 33 ) the diversions ( 16 ) one of the rounds ( 10 ) overlaps at least partially transversely and thereby from the balls ( 4 ) of the second unloaded subsets ( 17 ) is set back so far that the balls ( 4 ) of the second unloaded subsets ( 17 ) transverse to the longitudinal axis ( 1a . 30a ) relative to the spring plates ( 20 . 33 ) are arranged to be movable around a movement game ( 12 ). Bearing according to claim 37, characterized in that the sleeve ( 29 ) the inner profile ( 2 ) comprehensive on the circumference and between the inner profile ( 2 ) and the balls ( 4 ) arranged inner sleeve ( 7 ) is made of sheet metal, the inner sleeve ( 7 ) is fixed relative to the inner profile ( 1 . 2 . 6 and 7 ). Bearing according to claim 47, characterized in that the inner sleeve ( 7 ) the cross section of a multi-sided hollow profile, preferably with an even number from the outside side surfaces ( 7a ), the outward-facing side surfaces ( 7a ) the inner sleeve ( 7 ) one inward facing side surface ( 5b ) the outer sleeve ( 5 ) is opposite ( 1 . 5 and 7 ). Bearing according to claim 48, characterized in that the support ( 25 . 27 ) in one piece with the inner sleeve ( 7 ) from the sheet of the inner sleeve ( 7 ) is formed ( 2 . 5 and 6 ). Bearing according to claim 49, characterized in that the support ( 25 . 27 ) from the sheet of the inner sleeve ( 7 ) is angled outwards ( 2 . 5 and 6 ). Bearing according to claim 50, characterized in that the support ( 25 . 27 ) on the unloaded bearing ( 1 ) from inside to outside across the longitudinal axis ( 1a ) to the outer sleeve ( 5 ) is at least spaced by the operating clearance on the unloaded bearing ( 7a ).